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. 2003 May;132(1):185–195. doi: 10.1104/pp.102.018887

Figure 5.

Figure 5

Visual damage in response to O3 in birch after the inhibition of ET perception or biosynthesis. ET perception was blocked with 300 nL L−1 MCP and ET biosynthesis with 1 mm AOA. Ramets were exposed to 200 nL L−1 O3 for 6 h. Photographs were taken 48 h after the beginning of the O3 exposure. A, An O3-treated leaf of the 1-year-old clone V5818 (left) and a leaf pretreated with MCP and then with O3 (right). B, A detail of an O3-treated leaf of the 3-month-old clone V5818 (left) and a leaf pretreated with MCP and then with O3 (right). C, A detail of an O3-treated leaf of the 3-month-old clone V5818 (left) and a leaf treated with MCP (right) after the O3 pulse. D, An O3-treated leaf of the 1-year-old clone V5818 (left) and a leaf treated with AOA and O3 (right).